body {
      background: linear-gradient(135deg, #764ba2 0%, #667eea 100%);
      font-family: 'Vazirmatn', sans-serif;
      min-height: 100vh;
      display: flex;
      align-items: center;
      padding: 2rem 0;
    }
    .register-card {
      background: white;
      border-radius: 1.5rem;
      box-shadow: 0 20px 40px rgba(0, 0, 0, 0.12);
      padding: 3rem;
      max-width: 600px;
      margin: auto;
    }
    .register-title {
      font-weight: 700;
      color: #2d1b69;
      margin-bottom: 2rem;
      font-size: 1.9rem;
    }
    .form-control {
      border-radius: 0.75rem;
      padding: 0.75rem 1rem;
      border: 1.5px solid #e2e8f0;
      transition: all 0.3s ease;
    }
    .form-control:focus {
      border-color: #667eea;
      box-shadow: 0 0 0 0.2rem rgba(102, 126, 234, 0.25);
    }
    .btn-register {
      background: linear-gradient(to right, #667eea, #764ba2);
      border: none;
      border-radius: 0.75rem;
      padding: 0.8rem;
      font-weight: 600;
      font-size: 1.1rem;
      transition: all 0.3s ease;
    }
    .btn-register:hover {
      transform: translateY(-3px);
      box-shadow: 0 10px 20px rgba(102, 126, 234, 0.3);
    }
    .section-title {
      font-weight: 600;
      color: #4c1d95;
      font-size: 1.1rem;
      margin: 1.5rem 0 1rem;
      padding-bottom: 0.5rem;
      border-bottom: 2px solid #e0e7ff;
    }
    .back-link {
      color: #667eea;
      text-decoration: none;
      font-size: 0.95rem;
    }
    .back-link:hover {
      color: #764ba2;
    }